Proposes Vocabulary and Block Design as a two-subtest short form of the Wechsler Adult Intelligence Scale-Revised; the addition of Arithmetic and Picture Arrangement provides a four-subtest short form of the scale. Presents tables giving Full Scale IQs for each of nine age groups for both short forms. (Author)

Results of a battery of psychometric and chronometric tests administered to 90 adults show that inspection time (IT) and decision time measured different processes, and that Wechsler performance IQ does not measure fluid ability. Findings suggest that IT does not measure fluid ability, but whether information processing speed is common to all…

Explored the relationship of both simple and four-choice reaction time to scores for the Alice Heim 4 (AH4) test to assess whether correlations previously reported adequately represented the strength of the relationship and to test for departures from linearity. Findings for 900 adolescents and adult show the correlation to be a good summary for…

Criticizes "The Bell Curve" for its lack of understanding of the philosophical nature of intelligence (and mind). Points out that various philosophical attempts to analyze the concept of intelligence are routinely ignored by empirical workers in the field of IQ testing because such philosophical work makes obvious the lack of connection…

This study examined the phenotypic and genotypic relationship between working memory speed (WMS) and working memory capacity (WMC) in 12-year-old twins and their siblings (N = 409). To asses WMS all children performed a reaction time task with three memory loads from which a basic mental speed measure and the derived slope were used. WMC was…

Data from the national standardization of the French version of the WISC-III were analyzed to determine when during childhood the IQ-related process of differentiation appears and how the strength of the relationships among subtests evolves with age in low- and high-IQ groups. Indeed, some recent studies suggest that age might moderate the effect…

The cognitive profiles of 161 gifted children--those with a Full Scale, Verbal, and/or Performance IQ of 130 or higher on the Wechsler Intelligence Scale for Children, Third Edition (WISC-III; Wechsler, 1991)--were examined. It was hypothesized that this population of very intelligent children would demonstrate much larger Verbal-Performance…

The impetus for our study was the contention of both Lynn [Lynn, R. (1991) "Race differences in intelligence: A global perspective." "Mankind Quarterly," 31, 255-296] and Rushton [Rushton, J. P. (1995). "Race, evolution and behavior: A life history perspective." New Brunswick, NJ: "Transaction"; Rushton, J.…

In order to investigate the effect of reinforcing subject responses to Stanford-Binet test items, regardless of whether such responses were correct or not, one-half of a sample of Head Start children were administered a standard Stanford-Binet test and the other half were administered the same test with the modification that responses were…

The magnitude of differences between the intelligence quotients (IQs) obtained from the Wechsler Intelligence Scale for Children-Revised (WISC-R) and those from the original WISC was estimated. Results showed the WISC-R to yield slightly lower estimates. The particular sub-scale used, age, and ability level affected results. (Author/JKS)

Provides initial information on the relationship of the Shipley-WAIS Conversion scores to the WAIS-R (Wechsler Adult Intelligence Scale). Results support the need for new conversion norms for Shipley to WAIS-R scores. The old Shipley to WAIS conversion scores overestimated the WAIS-R scores, particularly among lower-functioning inmates.…

Examined Shipley-Hartford Scale effectiveness in predicting Wechsler Adult Intelligence Scale-Revised Full Scale intelligence quotients (IQ) in hospital patients (N=156). Analyses revealed overestimation of below average Full Scale IQs, underestimation of above average IQs. Advanced age was associated with low conceptual quotients, suggesting that…

Examines a few samples of Walter Lippmann's allegations concerning the validity of intelligence tests. (CT)

The relative contributions of mental speed and accuracy to Primary Mental Ability (PMA) IQ prediction were studied in 52 high ability grade 10 students. Both speed and accuracy independently predicted IQ, but not speed over and above accuracy. Accuracy was demonstrated to be universally advantageous in IQ performance, but speed varied according to…